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# Copyright 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from string import Template
import optparse
import os
import sys
try:
grit_module_path = os.path.join(
os.path.dirname(__file__), '..', '..', 'tools', 'grit')
sys.path.insert(0, grit_module_path)
from grit.format import data_pack as DataPack
except ImportError, e:
print 'ImportError: ', e
sys.exit(-1)
header_template = \
"""// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_HTML_VIEWER_BLINK_RESOURCE_MAP_H_
#define COMPONENTS_HTML_VIEWER_BLINK_RESOURCE_MAP_H_
#include <map>
namespace html_viewer {
class BlinkResourceMap {
public:
BlinkResourceMap();
const unsigned char* GetResource(int id, int* length);
private:
struct ResourceEntry {
const unsigned char* data;
int length;
ResourceEntry()
: data(nullptr)
, length(0) {
}
ResourceEntry(const unsigned char* data, int length)
: data(data)
, length(length) {
}
};
typedef std::map<int, ResourceEntry> ResourceMap;
ResourceMap resources_;
};
} // namespace html_viewer
#endif // COMPONENTS_HTML_VIEWER_BLINK_RESOURCE_MAP_H_"""
cpp_template = \
"""// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "$header_file_name"
#include "base/macros.h"
namespace html_viewer {
$definitions
BlinkResourceMap::BlinkResourceMap()
{
$map_initializer
}
const unsigned char* BlinkResourceMap::GetResource(int id, int* length)
{
ResourceMap::iterator it = resources_.find(id);
if (it == resources_.end()) {
*length = 0;
return nullptr;
}
*length = it->second.length;
return it->second.data;
}
} // namespace html_viewer"""
def main():
parser = optparse.OptionParser(
usage='Usage: %prog --pak-file PAK_FILE --header HEADER --cpp CPP\n')
parser.add_option('-i', '--pak-file', action='store', dest='pak_file',
help='The .pak file to be extracted.')
parser.add_option('', '--header', action='store', dest='header_file',
help='Header file to be generated.')
parser.add_option('', '--cpp', action='store', dest='cpp_file',
help='C++ file to be generated.')
(options, _) = parser.parse_args()
if (not options.pak_file or not options.header_file or not options.cpp_file):
parser.print_help()
sys.exit(-1)
header_file = open(options.header_file, 'w+')
cpp_file = open(options.cpp_file, 'w+')
pak_contents = DataPack.ReadDataPack(options.pak_file)
resourceIds = []
header_contents = dict()
cpp_contents = dict()
definitions = []
for (resId, data) in pak_contents.resources.iteritems():
resourceIds.append(resId)
hex_values = ['0x{0:02x}'.format(ord(char)) for char in data]
f = lambda A, n=12: [A[i:i+n] for i in range(0, len(A), n)]
hex_values_string = ',\n '.join(', '.join(x) for x in f(hex_values))
cpp_definition = \
'const unsigned char kResource%s[%d] = {\n %s \n};' % \
(str(resId), len(hex_values), hex_values_string)
definitions.append(cpp_definition)
header_file_contents = Template(header_template).substitute(header_contents)
header_file.write(header_file_contents)
header_file.close()
map_initializer = []
for resId in resourceIds:
insert_statement = \
'resources_.insert(std::pair<int, ResourceEntry>(\n' \
' %s, ResourceEntry(kResource%s, arraysize(kResource%s))));'
map_initializer.append( \
insert_statement % (str(resId), str(resId), str(resId)))
cpp_contents['definitions']= '\n'.join(definitions)
cpp_contents['header_file_name'] = os.path.basename(options.header_file)
cpp_contents['map_initializer'] = '\n '.join(map_initializer)
cpp_file_contents = Template(cpp_template).substitute(cpp_contents)
cpp_file.write(cpp_file_contents)
cpp_file.close()
if __name__ == '__main__':
main()
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